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(N6 Model.)

M. O. GORMAN.

AUTOMATIC GAS GOVERNOR. No. 310,580. Patented-Jan. 13,1885.

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- ATTORNEY ilivrren Srares Parent tribe,

MICHAEL O. GORMAN, OF JERSEY CITY, NEW JERSEY.

AUTOMATIC GAS=GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 310,580, dated January 13, 1885.

(No model.)

' To (LU whom it 11mg concern.-

Be itknown that I. MIOHAEL 0. GORMAN, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Automatic Gas-Governors, of which the following is a specification.

My invention relates to that class of gasgovernors in which an inverted cup floats in mercury for operating the valve which regulates the flow of gas from the meter.

The object is to properly guide the valve and simplify the construction, thereby lessen ing the cost.

Referring to the drawings, Figure l represents side elevation in sections, Fig. 2 a plan of same with cover removed.

a represents case provided with passages or ports, b for inlet and 0 outlet. d is avalve attached to stem 6, which passes through guidef, placed in the chamber b, above the valve (Z, and also passes through the guide 9 in the dome h of case a, and then secured to the in verted cup jk. On the top of said cup is placed the weights Z, to regulate the flow of gas through the valve d.

In the circular mercury-chamberm, formed by the case a and dome h, is placed the ring 0, between the smaller and larger cup k, for displacing a port-ion of the mercury. The said ring 0 is secured to the bottom of the chamber at by screws, over the port a, which passes through both the bottom and the ring. By the ring 0 two separate chambers are formed for the large and small cup, respectively, and the said chambers are connected, so as to equalize the height of the mercury in each, by the passage 12 between the bottom of chamber at and ring 0. The said passage extends around undcr the ring except where it is fastened to the bottom. (Shown by dotted lines in Fig. 2.)

On the top of the case a is fitted a cap, 9, and sealed or secured by means of pins or looks in lugs on the outside of case a. The object of this cap is to keep out the dirt, and is sealed to prevent unauthorized persons from tampering with same.

The operation is as follows: The 'gas from the meter passes into the opening or inlet 1), through the valve (1, out into the outlet 0. If the pressure of gas exceeds the amount consumed, it passes up into the dome h through the openings 00 x, and lifts the small cup j, and partly closes the valve (1. Should this be insufficient to regulate the flow of gas, the gas will then enter the port a and exert a greater force on the valve d by lifting the large cup k, the amount of pressure being always regulated by the balance-weight Z, and the valvestem e being guided by bars f and g the valve will always be sufficiently closed.

WV hat I claim, and desire to secure by Letters Patent, is

In a gas-pressure regulator, the guide 9, placed in the top of dome h, and guide f in the chamber 1), in combination with the valvestem 0 and case a, substantially as and for the purpose specified.

Signed at New York, in the county of New York and State of New York, this 8th day of April, A. D. 1884'.

MICHAEL O. GORMAN.

\Vitnesses:

O. M. WAGNER, CHRISTIAN XVEBER. 

